Natice areas of Oryza officinalis Wall in Guangxi wer damaged seriously.During the first round field survey in 1970',Oryza officinalis were found in 58 communes in Guangxi.However,when we carried out the second round survey in 2002-2009,it was only found in 43 townships.Compared with 1970'distribution of Oryza officinalis,the number of native areas has decreased by 25.9%.To conserve resources of Oryza officinalis wall safely,2142 accessions from 170 populations have been collected based on scientific sampling methods.At the same time,15 new native areas and some special germplasm resourses such as high plant height(5.2m),tilling from high nodes with 3-4 branches and half-curved leaves were found during the field surcey.result showed that genetic diversity of Oryza officinalis Wall in Guangxi was very abundant.Based on the field survey and analyses on the threats and root causes for Oryza officinalis,the authors provide